Operation
The first line determines whether a span calculation will be performed for THC. The second line determines whether a span calculation will be preformed for SMP. The third line allows the user to modify the span target value for THC calibration. The fourth line allows the user to modify the span target value for SMP.
The last line commences the span (after the following query:
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Begin Span:
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Pressing <Enter> enters the SPAN mode in the SMP phase first. The first pass in the SMP phase only purges the sample gas from the column (no span calculation is performed this time around). Then the THC is span calibrated followed by the second pass of the SMP mode, where the span calculation is performed. The 4030 goes through all of these phases, but span values are only adjusted if the user selected YES in the initial menu for the respective phase.
4.4.11 The Alarms Function
The Model 4030 is equipped with two alarms and a system failure alarm relay. Each alarm relay has a set of form "C" contacts rated for 3 amperes resistive load at 250 VAC. See Figure in Chapter 3, Installation and/or the Interconnection Diagram included at the back of this manual for relay terminal connections. The alarm relay contacts are accessible to the user from the
The system failure alarm has a fixed configuration described in Chapter 3 Installation.
The concentration alarms can be configured from the ALARM function screen as follows:
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